Sep 2019 I draft d1 automotive industry standards

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AIS 156
AIS 156

Heavy Rainstorm

Washing

This testis intended to simulate a normal washing of Electric Power Train vehicles, but not specific cleaning using high water pressure or underbody washing. The vehicle manufacturer shall specify detailed conditions for such specific cleaning or washing in the owner’s manual. The critical areas of the vehicle regarding this test are borderlines i.e. a seal of two parts as flaps, glass seals, outline of opening parts, outline of front grille, seals of lamps. In the case of open vehicles such as 3-wheelers without doors and windows, or
2-wheelers etc the manufacturer shall specify the procedure for normal washing also. In such cases, the washing test shall be conducted by taking into account the above recommendation. The test uses a hose nozzle according to IPX5 as specified in IEC 60529 (Refer
Annex-9B Figure 1 for details. Using freshwater with a flow rate of 12.5 l/min, all borderlines shall be exposed and followed in all directions with the water stream at a speed rate of 0.1 ms, keeping a distance of 3 m between the nozzle aperture and the borderline.
5.5.2
Flooding This testis intended to simulate the driving of an Electric Power Train vehicles on flooded streets or in water puddles. The vehicle shall be driven in a wade pool, 10 cm in depth, over a distance of
500 mat a speed of 20 km/h resulting in a time of approximately 1.5 min. If the wade pool used is less than 500 min length, so that it has to be driven through several times, the total time including the periods outside the wade pool shall be less than 10 min.
5.5.3
Heavy Rainstorm This testis intended to simulate a sudden heavy rainstorm e.g. a thunderstorm, when opening parts especially to access to the passenger, load and motor compartments are open except those requiring one or more tools. In case of voltage class B equipment shielded from exposure to water, this test of the whole vehicle maybe replaced by equivalent tests on the components individually. The critical areas of the vehicle regarding this test are those accessible with opened opening parts. This test uses a spray nozzle according to IPX3 as specified in IEC 60529.

20 Using freshwater with a flow rate of 10 l/min, all surfaces with normally open opening parts shall be exposed for 5 min, possibly through a regular movement of the spray nozzle. Note Voltage class B equipment is an equipment with nominal voltage (U) DC 60 V < U <= 1500 V
AC: 30 V rms < U < = 1000 V rms – 15 to 150 Hz

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